# Relationships and series

> What several transactions in the same workspace reveal together: relationships between two operations, then recurring series, their lifecycle and their identity corrections.

Some readings only emerge from several transactions in your workspace, and they stay private to that workspace. [Relationships](https://developer.noryo.app/en-GB/transaction-intelligence/relationships) describes the link between two operations (`refund_of`, `reversal_of`, `transfer_pair`), the role of each, its corroborations and its abstentions.

Series are then read across three pages, one per axis: [Recurring series](https://developer.noryo.app/en-GB/transaction-intelligence/recurring-series) for what a series is, its stable identifier and its `status`; [Series lifecycle](https://developer.noryo.app/en-GB/transaction-intelligence/series-lifecycle) for what is happening to it now (`lifecycle.state`); [Split, merge, supersession](https://developer.noryo.app/en-GB/transaction-intelligence/split-merge-supersession) for identity corrections, which never erase a `series_id`. The lifecycle relies on the [observation coverage](https://developer.noryo.app/en-GB/transaction-intelligence/observation-coverage) you declare.

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Canonical page: https://developer.noryo.app/en-GB/transaction-intelligence/relationships-and-series